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Showing posts from September, 2010

GE: Ecomagination Challenge: Ideas

GE is coming up with an eco-imagination challenge for the following three categories Create - Renewable Energy Connect - Grid Efficiency Use - EcoHomes/EcoBuildings Anybody can share their ideas in the above threee challenges and the winner will get awarded with 200 million US dollars. Textile is competing in all fields and it has promising future in making the earth greener. Post your textile ideas that can save planet and get rewarded. Click the below link to learn more and post your ideas. Good luck!   GE: Ecomagination Challenge: Ideas

Textiles as UV Protection

With the depletion of ozone layer, more and more people are realizing the health threat posed by the sun. Textiles can provide protection from ultraviolet rays to a greater or lesser extent, depending on the type and construction of the fabric. When UV rays impinge on a textile material, the radiation can be completely reflected, dispersed or absorbed. Selection of textile fiber is significant in providing the protection. The protection factor of greige cotton is considerably higher than bleached cotton, because the natural pigments, pectins and waxes provide UV absorption. Polyamide fibers are quite permeable to UV rays, whereas polyester fibers posses strong absorption. Artificial fibers can be produced with good protection against sun rays by simply adding titanium dioxide, which in integrated in polyester and poly-acrylic fibers. Titanium dioxide provides excellent UV protection and also provides some cooling effect. The protection can be further enhanced by using cationic dyes. ...

Gas-Solid Filtration

Textile medium has been used as an aid for filtration since old ages. Early humans used woven sacks made of cotton or wool for filtration. During the industrial revolution, reverse air cleaning with cotton or woolen bags were popular. With the introduction of man-made fibers, fabric filtration seen a huge success in the industrial which widened its applications [high temperature filtration, micro dust collection, etc].  Its literally used in almost all types of industries to collected dust from the gas. Their are four types of Gas-solid filtration systems currently available for the industries. They are textile filtration systems, electrostatic precipitator, centrifugal filtration system and wet filtration system. Among these, textile and electrostatic precipitator systems are used much. Textile filtration systems are preferred much because of its high filtration efficiency and can be engineered to suit the industry. Textile filtration for gas-solid can be broadly divided into ...

Supercritical Dyeing

Who said water is the only medium that is used to carry dyes into the fibers. Dyecoo textile systems is introducing another medium that can be used as a dyeing medium and that medium is none other than Carbon dioxide; the gas that is responsible for the global temperature rise. If we use water as a medium, we need additional water treatment process to collect unabsorbed dyes and prevent pollution. The pollution control regulations make the water treatment process necessary for the dyeing plant before it is released into the environment. This process obviously increased the cost of dyeing of the textile material.   We are living in the world of scarcity and this applies to water also. Water is precious and we cannot afford to waste it. This is how the process works: Carbon dioxide is heated to around 120 0 C or 250 0 F in a high-pressure chamber at 250 bar. Under these conditions, the carbon dioxide will be converted to supercritical state; a state at which the gas converts to...